Commit Graph

14 Commits

Author SHA1 Message Date
Kate Stone b9c1b51e45 *** This commit represents a complete reformatting of the LLDB source code
*** to conform to clang-format’s LLVM style.  This kind of mass change has
*** two obvious implications:

Firstly, merging this particular commit into a downstream fork may be a huge
effort.  Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit.  The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):

    find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
    find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;

The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.

Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit.  There are alternatives available that will attempt
to look through this change and find the appropriate prior commit.  YMMV.

llvm-svn: 280751
2016-09-06 20:57:50 +00:00
Ed Maste 75500e72bb Typo corrections identified by codespell
Submitted by giffunip@yahoo.com; I fixed a couple of nearby errors and
incorrect changes in the patch.

llvm.org/pr27634

llvm-svn: 275983
2016-07-19 15:28:02 +00:00
Greg Clayton c7bb34f6ec Thread local storage was already broken on Linux and the tests were passing because there was a dectorator:
@unittest2.expectedFailure("rdar://7796742")
    
Which was covering up the fact this was failing on linux and hexagon. I added back a decorator so we don't break any build bots.

llvm-svn: 274388
2016-07-01 21:25:20 +00:00
Greg Clayton 63a27afae3 Added support for thread local variables on all Apple OS variants.
We had support that assumed that thread local data for a variable could be determined solely from the module in which the variable exists. While this work for linux, it doesn't work for Apple OSs. The DWARF for thread local variables consists of location opcodes that do something like:

DW_OP_const8u (x)
DW_OP_form_tls_address

or 

DW_OP_const8u (x)
DW_OP_GNU_push_tls_address

The "x" is allowed to be anything that is needed to determine the location of the variable. For Linux "x" is the offset within the TLS data for a given executable (ModuleSP in LLDB). For Apple OS variants, it is the file address of the data structure that contains a pthread key that can be used with pthread_getspecific() and the offset needed. 

This fix passes the "x" along to the thread:

virtual lldb::addr_t
lldb_private::Thread::GetThreadLocalData(const lldb::ModuleSP module, lldb::addr_t tls_file_addr);

Then this is passed along to the DynamicLoader::GetThreadLocalData():

virtual lldb::addr_t
lldb_private::DynamicLoader::GetThreadLocalData(const lldb::ModuleSP module, const lldb::ThreadSP thread, lldb::addr_t tls_file_addr);

This allows each DynamicLoader plug-in do the right thing for the current OS.

The DynamicLoaderMacOSXDYLD was modified to be able to grab the pthread key from the data structure that is in memory and call "void *pthread_getspecific(pthread_key_t key)" to get the value of the thread local storage and it caches it per thread since it never changes.

I had to update the test case to access the thread local data before trying to print it as on Apple OS variants, thread locals are not available unless they have been accessed at least one by the current thread.

I also added a new lldb::ValueType named "eValueTypeVariableThreadLocal" so that we can ask SBValue objects for their ValueType and be able to tell when we have a thread local variable.

<rdar://problem/23308080>

llvm-svn: 274366
2016-07-01 17:17:23 +00:00
Stephane Sezer 3553c0e5e7 Allow gdbremote process to read modules from memory
Summary:
The logic to read modules from memory was added to LoadModuleAtAddress
in the dynamic loader, but not in process gdb remote. This means that when
the remote uses svr4 packets to give library info, libraries only present
on the remote will not be loaded.

This patch therefore involves some code duplication from LoadModuleAtAddress
in the dynamic loader, but removing this would require some amount of code
refactoring.

Reviewers: ADodds, tberghammer, tfiala, deepak2427, ted

Subscribers: tfiala, lldb-commits, sas

Differential Revision: http://reviews.llvm.org/D18531

Change by Francis Ricci <fjricci@fb.com>

llvm-svn: 265418
2016-04-05 17:25:32 +00:00
Bruce Mitchener 7d9a419a3a Remove long-forgotten plugin virtuals.
Summary:
EnablePluginLogging, GetPluginCommandHelp and ExecutePluginCommand aren't
implemented or used anywhere, so remove them from the Hexagon and POSIX
Dynamic Loaders as well as the FreeBSD process.

Reviewers: clayborg, labath, emaste

Subscribers: lldb-commits, emaste

Differential Revision: http://reviews.llvm.org/D13581

llvm-svn: 249840
2015-10-09 15:37:10 +00:00
Tamas Berghammer 42ecef3b15 Add absolute load address support for the DynamicLoader plugins
The POSIX linker generally reports the load bias for the loaded
libraries but in some case it is useful to handle a library based on
absolute load address. Example usecases:
* Windows linker uses absolute addresses
* Library list came from different source (e.g. /proc/<pid>/maps)

Differential revision: http://reviews.llvm.org/D12233

llvm-svn: 245834
2015-08-24 10:21:55 +00:00
Ewan Crawford 90ff791141 Expression evaluation, a new ThreadPlanCallFunctionUsingABI for executing a function call on target via register manipulation
For Hexagon we want to be able to call functions during debugging, however currently lldb only supports this when there is JIT support. 
Although emulation using IR interpretation is an alternative, it is currently limited in that it can't make function calls.

In this patch we have extended the IR interpreter so that it can execute a function call on the target using register manipulation. 
To do this we need to handle the Call IR instruction, passing arguments to a new thread plan and collecting any return values to pass back into the IR interpreter. 

The new thread plan is needed to call an alternative ABI interface of "ABI::PerpareTrivialCall()", allowing more detailed information about arguments and return values.

Reviewers: jingham, spyffe

Subscribers: emaste, lldb-commits, ted, ADodds, deepak2427

Differential Revision: http://reviews.llvm.org/D9404

llvm-svn: 242137
2015-07-14 10:56:58 +00:00
Greg Clayton ddaf6a7259 Make many mangled functions that might demangle a name be allowed to specify a language to use in order to soon support Pascal and Java demangling. Dawn Perchik will take care of making this so.
llvm-svn: 241751
2015-07-08 22:32:23 +00:00
Greg Clayton 6f997133b0 Unbreak the build.
llvm-svn: 240711
2015-06-25 22:20:02 +00:00
Greg Clayton 358cf1ea30 Resubmitting 240466 after fixing the linux test suite failures.
A few extras were fixed

- Symbol::GetAddress() now returns an Address object, not a reference. There were places where people were accessing the address of a symbol when the symbol's value wasn't an address symbol. On MacOSX, undefined symbols have a value zero and some places where using the symbol's address and getting an absolute address of zero (since an Address object with no section and an m_offset whose value isn't LLDB_INVALID_ADDRESS is considered an absolute address). So fixing this required some changes to make sure people were getting what they expected. 
- Since some places want to access the address as a reference, I added a few new functions to symbol:
    Address &Symbol::GetAddressRef();
    const Address &Symbol::GetAddressRef() const;

Linux test suite passes just fine now.

<rdar://problem/21494354>

llvm-svn: 240702
2015-06-25 21:46:34 +00:00
Ilia K acf20fa233 Fix a few compile warnings
llvm-svn: 237238
2015-05-13 09:04:59 +00:00
Deepak Panickal d4f3f94e6a Fix the warnings introduced
llvm-svn: 213643
2014-07-22 11:59:11 +00:00
Deepak Panickal ca238a7b82 Dynamic loader for the Hexagon DSP
llvm-svn: 213565
2014-07-21 17:19:12 +00:00